Time-switch.



20 ,a' side 'elevat-ionywith thejcontnming case in p I wmnsron driven; ossnerrtfi, whs'nmdc'oresssrsim n gfi lngif 3 2 r cmnnne, ec-snnrrnn; wesnme'ronn spexemi n of Letters new, j em filed tem 4, 190a, "serial ma. 51 ,219.

30 of. such connections contact with-con 'ductors 31 and 32'which are operatively' nected by securing screws 33 with the switch) terminals 34 21111135 within-the com artmentv 15. The switch closure consists o '--'levr -60 fulcrumed at 36 and havin branches 3'? p :upon the one side'of the fcrum to pr'o r de," a bridge for-the gap and at thebthelr, slde terminatesiin an arc-sha pedwextremity 3 which xhay be formed of'lnsulating m'a cfi teriel, Aspringfitl is'em loyed to normally raise thefbranched amigo; saidlever 'ohboi contact with one or. both of-said switch ter j ,minels'. 40; represents "a, post which "is v I mounted forrotetion in the aforeseid'm titions and is-restrained by a tension nut 41''" see Fi .6, npomthe screw-threaded reducegiend 0 the post and serves to dre'wfthe-i' shoulder 2 with more or less tightness against-the intermediate partition=l2, 'l6

,t Be it blown that I, wmsmn (l -Pu s, a sub'ect of] the Kingof England, residmg' at eattle in the county of King and State 1 To 'mdy siof-"washin 011,1 have invented certain new and useful; mpro'v'e'mentsin Time-Switches,

of which theffollowing isjhlspecification. 7 i

' .This inventioni elatestocertain improvemer ts in electric, switchea;.nnd' its ob ectis e produce e'device of 'thisjcharacter which is actuated tocom iete en electrical circuit 'at a predetermine timegsandl maintaining;

such connebtion fore-selected eriodz',

- The invention consists int e" novel construction and combination of elements which willcbephereinefter more described ,and

claimed. is-

' Inthe accompanying drawings showing an embodiment'of my inizention, figure l is section; Fi ,2 is a, sectional viewtaken on line 2-2 0 .v 1'; -Fig. 3-"is a front elevw tion with electrical .plugr and socket connections attached; LFig. Q is .e -section taken '25 thrdugh Fig. 1 at in p the 'connectlonsshown infl-Fig. 3; Fig. 5 is a perspective view of certain working parts e and including of theinvention; and Fig t is a detailsec- ,tionel View.

0 The reference I numeralfll lO designates a dontaininflca'se, which may be of gutta- I erc'ha, rubber, or other suitable substance.

hecase. is provided with a transparent 'front. 11, suc as'of glass. "Partitions 12 end 13are'provided to' a-flt'ord compartments f 14 15 and16 within the case. In the rear most compartment, 14, is provided a clock work which ma conveniently be in the form 1 of a watch, in icated'by' 17, and having a 4 0 stem-18 protruding from the outside of the casefor winding and setting purposes; In this instance,. however, the minute hand .andvis provided from the latter in'diametricallygopposite dii I Mounted for independent rotary motion upon said post 420' ise toothedgearwheel in continuous'mesh with adriving inion- 44 which is fixedly secured to the spindle 19.],

The wheel 43 is'desirably twice thediametei [89 of the pinion; hence it' isceused tofbe" ivenj nien1ber45 through which said with arms which extend} rectio'hs; Onevcf these arms, 46 pro-1' .vided with an upwardly directe conicel end 47 which my be secketed inan one of 9 a series of notch 48 extending rom" en arcuate-slotfig pro Ided jinthe wheel for 5 the purpose of; edfiustably 1 coupling the 1 wheel and the member 45 so that they will rotate asa single piece The other arm of said member has its end oflset downwardly} I to provide a finger 50 directed radiallygwit j L respect to the 0st. 'f, p. j Integral wit the ear wheel 43 acrown' cam 51 "which is c arscterized, by having.

u'pon itsupper ed e swiping surface which;--.

as best shown in ig 5, ascendscirctiinienentiallyfrom the lowest to highest.eleve'-.

tions at the top and bottoxncf tin-upright v v porti n52. 108' 53 represents a stud extending nanny fro the post and against which the-c m is yieldingly pressed through theegency of a s'prmgyfi actinageinst the underside of I y and itsxdriving connections are omitted and wthe's indle 19' for thehourihand 20 is provide of'ii'; length to extendinto theffr'ont compartxnient 16 wherein such hour-hand is located. "The front face-ofthe partition 13 is marked as' a' clock-dialf by seriatenum I hers, such'as'21. f Extending through the compartment 14 is an electrical condnctor 22 having terminals I 24 and 23 which are respectively arranged s for contact'with the conductors 25 and 26- of the plug and socket connections 27 and 28; The complementary conductors 29 and the member utside of the'pert ition 13 9 30 arm 38 when, the latter being unrestrained, determined length of time.

i 60 by the spring 54 acting againstthe member.

said post is provided with a'squared end 55 clock-work, driving connection between said to accommodate a watch-key, or an-equivacam and the clock-work, a spring, a member 65 lent, whereby thepost may be turned to adactuated by said spring and cooperating just thefstud thereof as may be required and with said cam to cause said closureto be- Y as will} be indicated by a pointer 56 with come operative and also serving to maintain reference to a seriesof numberedmarks 57 the closure in such operative condition for a upon the aforementioned dial fac. predeterminately variable time.

The operation of the invention may be 2. The combination with clock-work and ,explained as follows: Assuming that the an electric switch, of a spring tending to 1 ofllswitch is open, the actuating clock-work roopen and maintain said switch in such open tates the pinion 44 which, in turn, causes the condition, a cam rotated by said clock-work,

gear-wheel 43 to be rotated together with a second spr1ng, a member connected with 75 the cam 51 which moves with the wheel. said cam and cooperating therewith and The rotating cam acting against the stud 53 with the aforesaid springs to alternatively is thereby'pressed rearwardly with the wheel effect the opening and closingof the switch.

andinop'position' to the "spring 54'so that .3. In an electric switch, the combination the revolving finger p'asses behind the part of the switch terminals, a lever circuit closer 380i the switchclosure'. When the cam has therefor, a spring tending to maintain said M movedsufiiciently to carry the portion 52 closer in opencondition, a rotatably adjuslibeyond the stud, then the cam is liberated able post, a stud protruding from said pos so" that the spring 54 can assert itself to a toothed wheel mounted for rotation on the thrust the wheel 43 forward and drag the, post, a pinion in mesh with said wheel, 35 arm 38 of the switch closure therewith clock-work for rotating said pinion for through the instrumentality of the finger 50. transmitting rotary motion to said wheel, a

This effects the closing of the switch by the cam rotatable with the wheel, and means ro- 6 bridge 37 contacting with the switch termitated with said wheel and controlledby the nals 34 and 35. Such conditions will-preconjoint actions of said cam and stud to '96 Vail until the" continued rotation of the close the, switch and subsequently to mainwheel 43* carries the finger- 50 beyond the tain the switch in closed condition for a'pre-- permits the switch closure to be pressed from 4. In an electric switch, the combination such terminals by the power of-the spring 39, 0t 'theswiteh terminals, a circuit closer, a 95- From the foregoing it is evident that the spring tending to retain the closer in open yrelative circular positions otthe stud 53 and condition, a rotatably adjustable post,- a stud the end 52 of the cam operating surface deprotruding radially from the post, a toothed termines the time at whichthe switch-will wheel mounted for rotation on the post, a: be closed and which is'adju'sted by rotating crown cam carried by the wheel, a spring 100 v the post by means of-a key, as before acting to maintain the cam inoperative conmentioned, and pr'edeterminately through nection with said stud, clock-Work for driv 40 the corresponding'movement of the pointer ing said wheel, a finger adapted-to cooperate 56 itlnr t to th mark 57 upon the wlthsaid cam and the stud and throughthe, dial. It is also evident that the length of instrumentallty of the second namedspring ibs time which the switch will remain closed -for causing said closer to become operative corresponds with the timein which the finto close the switch at a predetermined time ger is wiping against the back of the and forapredetermmed period switch closure 38, thatpis to say, from the 5. In an electrlq sWltch, the c0mb1nat1 on circular position of'the finger to the point. ithe sw1tch terminals, a circuit closer'norof its leaving the closure in the course of its mally in open condition, a rotat b v g -i rotation with the. wheel 43. Accordingly,to able post, a stud protrudlng radially; ro i 50 varythe duration of the time of the switch. e po 3 Wheel ed Q q n 'a remaining closed it is merely necessary to the pos t, a crown cam carried by the wheehga," 1,

adjust the position of the finger 50 with respring tendlng to ma ntain the cam in o 11'5 lation to the actuating point of the cam. ratlve connection with said stud, cloc More particularly, to changethe position f work for eiiecting the continuous rotation of I 55 the finger the conical end-of the member 45 the wheel, a finger controlled said cam is dislodged from the notch it then occupied nd s d a u t d by and spring for.

in the wheel 43 and swung in one rotary di- C2LUS1I1 g said closer to become; operatlve to,

rection or the other to present it t close the switchat a predetermined time and lec'ted notch wherein-it is inserted and held for apredetermmed P Y a VILLESTON C. PUGH. What} claim as my invention is: I I "Witnesses: h 1. In an electric switch, the switch termi- H. BARNES,

nals, a normally open switch closure, a cam, M.- M. SMITH. a 

